Materials Data on Li3B5(HO5)2 by Materials Project
Li3B5O8(OH)2 crystallizes in the tetragonal P4_12_12 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.01–2.40 Å. In the second Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.06–2.48 Å. There are three inequivalent B3+ sites. In the first B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There is three shorter (1.48 Å) and one longer (1.51 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of B–O bond distances ranging from 1.36–1.39 Å. In the third B3+ site, B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There is two shorter (1.47 Å) and two longer (1.50 Å) B–O bond length. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+ and two B3+ atoms. In the second O2- site, O2- is bonded to two Li1+ and two B3+ atoms to form distorted edge-sharing OLi2B2 tetrahedra. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two B3+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Li1+ and two B3+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+, one B3+, and one H1+ atom.